Figures on the number of victims vary dramatically. The U.N. says at least 350 people were killed, but province governor Shah Waliullah Adeeb earlier said the toll could be 2,000 or higher.

Mark Bowden, the U.N. Secretary-General’s Deputy Special Representative for Afghanistan, told Al Jazeera that it was too early to issue a definitive death toll in the disaster but added that hope of rescuing the missing villagers “has now disappeared.”

Baidar said aid supplies have reached the area and tents are being set up for survivors who have been evacuated to higher valleys, but limited progress has been made digging through the mud using machinery.

Friday's damage was actually caused by two landslides from the hilly terrain, said Abdullah Homayun Dehqan, director of Badakshan province's National Disaster Department. The first, smaller one covered a few houses. When people rushed in to help, a second, bigger landslide came down, burying the rescuers and more houses, he said.

Another official with the authority, Ahmad Khan Nafeh, said initial reports suggest that 120 houses had been buried under the mud. Speaking on Afghan television, he said he did not have any information on the number killed or missing but said it was unlikely that anyone buried underneath would be found alive.

"I don't think any human who would have been buried under all that mud for more than 12 hours or so, would have been alive," he said.

The Associated Press contributed to this report. Alastair Jamieson reported from London.